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Network id: 173.128.0.0/18 We have two different networks Network A has 3319 usable hosts and Network B 126 I calculated their subnet masks, but now I am not sure how to calculate their first and last usable addresses Is it 173.128.0.1 or 173.128.15.1

Zhanel
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  • 3319 usable host addresses isn't possible with IP. It's always 2^n-2 for IPv4. – Zac67 Feb 27 '23 at 18:26
  • [This two-part answer](https://networkengineering.stackexchange.com/a/53994/8499) has a section about this: **Subnet Size Based on Number of Hosts** – Ron Maupin Feb 27 '23 at 18:53

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